.box-answer {
    background: #f5f7fa;
    height: 100vh;
  
    .header {
      height: 60px;
      background: #fff;
      padding: 0 130px;
  
      .setting {
        color: #3c464f;
      }
    }
  
    .main {
      padding: 0 130px 35px;
      margin-top: 20px;
      height: calc(100% - 80px);
  
      .paper {
        background: #fff;
        border-radius: 10px;
        width: 100%;
        height: calc(100% - 65px);
        min-height: 500px;
        padding: 0 20px;
  
        .answer-sign {
          width: 32px;
          height: 32px;
          border: 1px solid #d6d6d6;
          border-radius: 50%;
          color: #6c6c6c;
          line-height: 30px;
        }
  
        .active-option {
          color: #12c83a;
  
          .answer-sign {
            background: #12c83a;
            border-color: #12c83a;
            color: #fff;
          }
        }
  
        .total-num {
          color: #91a4bc;
        }
  
        .answer-card {
          position: absolute;
          bottom: 0;
          left: 20px;
          width: 100%;
  
          .card-title {
            height: 40px;
          }
  
          .question-num-box {
            width: calc(100% - 40px);
            height: 0;
            transition: height 0.5s ease;
            overflow: hidden;
  
            .question-num {
              width: 32px;
              height: 32px;
              border-radius: 5px;
              background: #f5f7fa;
              color: #3f4952;
              line-height: 32px;
              text-align: center;
              font-size: 14px;
              flex-shrink: 0;
              margin-right: 20px;
              margin-bottom: 30px;
              cursor: pointer;
              transition: height 0.5s;
            }
  
            .current-question {
              background: #f02323 !important;
              color: #fff;
            }
  
            .sign-question {
              background: #ffd502;
              color: #fff;
            }
          }
  
          .open {
            height: 190px;
          }
        }
  
        .arrow {
          background: #91a4bc;
          width: 40px;
          height: 40px;
          border-top-right-radius: 10px;
          border-bottom-left-radius: 20px;
        }
      }
    }
  
    .line40 {
      line-height: 40px;
    }
  }

  .custom-message-box {
    position: fixed;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    margin: 0 !important;
  }

  /* 单选按钮文字样式 */
  .el-radio__label {
    font-size: 18px;
    font-weight: bold;
  }
  
  .el-radio__input.is-checked + .el-radio__label {
    color: #12c83a;
  }